To investigate a shipwreck, Kitaro visits a port city alone, but none of the residents will talk to him. Kitaro pushes ahead with his investigation, but Ratman's betrayal causes him to be caught by a giant squid. Merpeople appear! The shipwreck was their doing. Kitaro fights desperately, but the merpeople use deep sea youkai techniques to change their form and...!?
According to one who barely survived...
...وفقًا لشخص بالكاد نجى
Den Worten eines knappen
Überlebenden zufolge …
Según un superviviente…
Según un superviviente…
D’après un marin
qui a survécu sur le fil…
Secondo quanto ha detto un uomo, 
sopravvissuto per il rotto della cuffia...
Segundo alguém que
sobreviveu por pouco...
Судя по тому, что сказал выживший...